There are various reasons for a little cramp in the belly, including normal menstruation or pregnancy, uterine fibroids, functional dyspepsia, bladder cancer, etc. It is necessary to make a comprehensive judgment based on the accompanying symptoms and hospital examination results, and then follow the medical advice for treatment after reaching an accurate conclusion. 1. normal menstruation or pregnancy: before and after the arrival of normal menstruation, because of hormonal changes, the endometrium is shed, which may lead to cramping and pain in the abdomen, which may be accompanied by breast tenderness. Pregnant women may experience lower abdominal discomfort, such as swelling and vague pain, and may have gastrointestinal symptoms, such as nausea and vomiting, with the enlargement of the uterus. If the fibroids are too large, the symptoms of pressure may lead to abdominal pain and discomfort. Small fibroids can be observed with the clinic, but multiple, gradually increasing fibroids need to be removed surgically; 3, functional dyspepsia: such as overeating, bad mood, etc. caused by indigestion, can appear a little cramp in the small stomach, can promote gastrointestinal peristalsis medicine, help food digestion and discharge; 4, urinary tract infection: bacterial infection is common, can have frequent urination, urinary urgency, painful urination, lower abdomen will feel cramped discomfort, can drink more water to promote urination The main treatment is surgery, BCG vaccine and epirubicin irrigation can be used; 6.Other diseases: pelvic inflammatory disease, endometritis, tubal inflammation, tubal abscess, ovarian cyst, cystitis, urinary tract stone and so on. A variety of diseases such as stones can lead to a little bit of swelling in the belly, it is recommended to seek medical attention in a timely manner, according to the cause of treatment. When there is a small abdominal swelling can first use physical methods to relieve the symptoms, such as warm towels, warm water bags hot compresses small abdomen, pay attention to insulation, palm of the hand with the pointer lightly rub the small abdomen, do not too hard, symptoms can not be relieved promptly seek medical attention.